Support running from composite build root (includeBuild)

[Nek-12]

Problem

Running ksrc from a composite build root (uses includeBuild) resolves only the root project and does not traverse included builds. This makes ksrc search return no sources even though the included build has the dependencies.

Repro

In an app monorepo, root includes an app via includeBuild("apps/app1").

ksrc search "pro.respawn.flowmvi:*" -q "fun.*updateState"

Actual

E_NO_SOURCES: no sources resolved.

Expected

From composite root, resolve across included builds by default (or at least provide a clear error + guidance). The spec currently says multi-project builds resolve all subprojects by default; composite builds are not covered and should probably follow the same spirit.

Workaround

Run from the included build root instead:

cd ../apps/app1
ksrc search "pro.respawn.flowmvi:*" -q "fun.*updateState"

Notes

• Root settings.gradle.kts uses includeBuild("apps/app1").
• ksrc currently uses a Gradle init script that walks root.allprojects, which does not include included builds.
• The recent fix for Gradle exclusive-lock errors moved resolution into per-project tasks; any composite build support should avoid reintroducing the lock issue.